Press for compressing liquid steel in conical ingot-molds.



No. 714,692.v Patented nec. 2, 1902. l Y H'. mlmma.

' 4 PRESS FOR COMPRESSING LIGUID STEEL IN GDNICAL INGDT MDLDS.

'4 l (Application med .my s, 1902.)

(N9 llnd'el 2 Shges-*Shmatl l.

No. 7|4,692.I 1- Patented Dec. 2H, 1902.

A m H. HARMET. PRESS FDRCOMPRESSNG LIQUID STEEL IN CONIGAL INGUT'MULDS.

(Appmrim med my s. 1902.)

` nu. Qm I UNrTnn STATES' MATENT Camicia.

HVENRIIIARMET, OF ST. ETIENNE, FRANCE;

PRESS FOR COMPRESSING LIQUID STEEL lN CONICAL INGOT-MOLDS.

SPECIFICATION formingpart of Letters Patent No. 714,692, dated December2, 1902. Application led July 8, 1902. Serial No. 114,760. (No model.)

To @ZZ whom t merg/concern:

Beit known that I, HENRI HARMET, a citizen of the Republic of France,residing at St. Etienne, Le Marais, Loire, France, have invented a newand useful Improvement in Presses for Compressing Liquid Steel inConical Ingot-Molds, which improvement is fully set forth in thefollowing specification.

This invention has for its object improvements in presses forcompressing liquid steel in conical ingot-molds.

Up to the present steel has been compressed in conical ingot-molds bypouring the metal directly into the top ofthe ingot-mold and incompressing a single ingot per press.

According to this invention the metal iows into the ingot-mold throughthe bottom of the same, the metal being then compressed by means of amovable bottom. Four ingots may thus simultaneously be compressed by asingle press by means of any suitable mechanical arrangements.

Causing metal to iiow into the ingot-mold through the bottom is notnovel; but my invention consists in supplying metal through a bottomwhich when the ingot-mold is filled is moved and also in the specialarrangement of the bottom, which allows the steel to be compressed inthe conical ingot-mold from bottom to top.

My invention consists in the arrangement which allows the metal to flowin axially at the bottom of the ingot-mold `without the walls beinguuequally heated and in which the bottom through which the metal Howsis, as has been stated, movable in the interior of the ingot-mold. Theingot is compressed in the conical ingot-mold by causing it to advancefrom the bottom toward the top, the

ingot -mold being stationary. The pipe through which the metal passes tothe bottom of the ingot-mold is sheared as soon as compression commencesand remains full of metal. For this object the ingot-mold is dividedinto two parts: first, the ingot-mold,7 properly so called; second, abase or lower portion upon which it rests and through which metaliiowstothe movable bottom. The bottom is housed in the base, and when themold is full of metal it is pushed upward by the com pressing-ram, theinlet--pipe being sheared. This arrangement is applicable to large orsmall ingot-presses.

In the annexed drawings, Figure 1 shows an arrangement applicable tolarge iugots. Fig. 2 shows a multiple press for the compression ofsmallingots.

In the figures, 1 is the ingot-mold, properly so called. l

2 is the base 0r lowerportiou, through which the metal passes. It isconnected to the vertical pipe 3 by key-bolts 4 and is protected againstthe heat of the liquid steel by the hollow brick 5.

6 is the truck, to which the base 2 is bolted.

7 is the movable bottom, which Vis hollowed to form a continuation ofthe hole formed iu the base 2. The brick 8 protects the bottom 7 againstheat and forms a continuation of the brick 5 for the inlet of metal. Inthe case of large ingots it is well to place above the bottom 7 a secondbottom 9, protecting the joint between 1 and 2. The brick l0, provided,as shown, with brick cones, makes the lling-hole which remainscontiguous to the bottom of the ingot of a shape which facilitates thedischarge of the ingot from the mold.

11 is a protective lining, of brick, protecting the metal pipe 3.

12 is a brick lining protecting the elbow.

The passages having the refractory linings 1l 12 5 8 10 are connectedthe one to the other in such a manner that no particle of liquid metalcan pass out through the joints.

With the arrangements shown the ingotmold is illed from the bottom. Whenthe metal is at the required height, the truck 6 is placed beneath thepress, and the ram 13 rising pushes 7, which shears the outlet from thepipe 14., the rupture taking place at the joint between the bricks 5 and8. The ingot is compressed in the conical ingolt-mold, as usual.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same isto beperformed, I declare thatwhat I claim isl. In presses for compressing rliquid steel in a conicalmold, an ingot-mold formed in two parts, the ingot-moldproperly socalled IOO and the base, the said base being provided with a lateralpassage for the inlet of the liquid metal, the said passage coincidingwhen metal is flowing in With a passage formed in the movable bottomwhich is housed in the base,-the said bottom being capable of upwardmovement by the action of the press by which it is lactuated at themoment of compression. l

2. In a device of the character described, an ingot-mold comprising anupper conical portion forming the mold proper and a base portion, alateral passage arranged in said base and forming an inlet for theliquid metal to the mold, a bottom for the mold proper arranged to movevertically in said base, a passage arranged in said bottom andcoinciding with the lateral passage in the base when the bottom is inits lowermost position, and means for elevating the bottom into the moldproper, whereby the inlet to the m'old may be sheared during thecompression of the ingot -in the mold.

3. In a device of the character described, a group of conicalingot-molds arranged to be fed by separate inlet-pipes from a reservoirof liquid metal in combination with a movable bottom for each moldarranged to form a continuation of the inlet-pipes when the bottoms arein their lowermost position and means for elevating the bottomssimultaneously into the molds, whereby the inlet-pipes may be shearedduring the compression of the ingots in the several molds.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

HENRI HARMET.

Witnesses:

ANTOINE CROZIER, HASTIN Gs BURROUGHS.

